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Finding the Fourth Proportional to 8,687.58, 13,033.78 and 2,848.28

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Solution

The fourth proportional to 8,687.58, 13,033.78 and 2,848.28 is: 4,273.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,687.58 : 13,033.78 = 2,848.28 : x
  2. Step 2: Convert to fraction form
    8,687.58/13,033.78 = 2,848.28/x
  3. Step 3: Cross multiply
    8,687.58x = 13,033.78 × 2,848.28
  4. Step 4: Simplify right side
    8,687.58x = 37,123,854.90
  5. Step 5: Solve for x
    x = 37,123,854.90/8,687.58
  6. Step 6: Final answer
    x = 4,273.21

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.